The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2010
Filed:
Jan. 21, 2009
Masashi Akahane, Matsumoto, JP;
Motomitsu Iwamoto, Matsumoto, JP;
Haruhiko Nishio, Matsumoto, JP;
Minoru Nishio, Matsumoto, JP;
Hiroshi Tobisaka, Matsumoto, JP;
Masashi Akahane, Matsumoto, JP;
Motomitsu Iwamoto, Matsumoto, JP;
Haruhiko Nishio, Matsumoto, JP;
Minoru Nishio, Matsumoto, JP;
Hiroshi Tobisaka, Matsumoto, JP;
Fuji Electric Systems Co., Ltd., Tokyo, JP;
Abstract
A drive control apparatus controls a drive of an inductive load having a current flowing therethrough. The drive control apparatus includes a drive control device for controlling a variation of the current flowing through the inductive load within a certain period by Pulse Width Modulation control so as to come close to a reference current value, and a reference value control device for controlling a fluctuation period of the reference current value and making the fluctuation period of the reference current value longer than that of the current flowing through the inductive load by the Pulse Width Modulation control.